请前辈帮小弟我解释一上上面的语句是什么意思，多谢

<?<br />
session_start();<br />
require_once("common/Common.inc.php");<br />
$AgentInfo = GetAgentInfo();<br />
$mainTpl = new MySmarty();<br />
$mainTpl->assign("title",$AgentInfo['SiteTitle']);<br />
$pro1362 = PInfo(1362);<br />
$pro1372 = PInfo(1372);<br />
$pro1363 = PInfo(1363);<br />
$pro1373 = PInfo(1373);<br />
$pro1367 = PInfo(1367);<br />
$pro1377 = PInfo(1377);<br />
$pro1368 = PInfo(1368);<br />
$pro1378 = PInfo(1378);<br />
$pro1369 = PInfo(1369);<br />
$pro1379 = PInfo(1379);<br />
$pro3180 = PInfo(3180);<br />
$arrskins = LoadAutoWebSkins();<br />
$arrskins = array_reverse($arrskins);<br />
$arrskins = array_slice($arrskins,40,20);<br />
$mainTpl->assign("price1362",$pro1362['iPrice']);<br />
$mainTpl->assign("price1372",$pro1372['iPrice']);<br />
$mainTpl->assign("price1363",$pro1363['iPrice']);<br />
$mainTpl->assign("price1373",$pro1373['iPrice']);<br />
$mainTpl->assign("price1367",$pro1367['iPrice']);<br />
$mainTpl->assign("price1377",$pro1377['iPrice']);<br />
$mainTpl->assign("price1368",$pro1368['iPrice']);<br />
$mainTpl->assign("price1378",$pro1378['iPrice']);<br />
$mainTpl->assign("price1369",$pro1369['iPrice']);<br />
$mainTpl->assign("price1379",$pro1379['iPrice']);<br />
$mainTpl->assign("price3180",$pro3180['iPrice']);<br />
$mainTpl->assign("skins",$arrskins);<br />
$mainTpl->display('autoweb_index.html');<br />
$DB->close();<br />
?>